3Dprint AM P22 is a low-alloyed, creep resistant solid wire for WAAM additive manufacturing. It also welds creep-resistant CrMo steels on boilers, steam lines, refinery plant and parts working at elevated temperature.
The wire runs under shielding gas, fed continuously from a semiautomatic torch, and it also serves in WAAM additive manufacturing. The deposit stands up to creep at elevated temperature.
- AWS classification: P22 - 10CrMo9-10 - 1.7339
- Diameters: 1.0 / 1.2 / 5.28 mm
Watch the hydrogen level, dry consumables and a preheated groove are the basic protection against cold cracking. Set the gas flow so the pool is covered over the whole length of the bead, and shield the station when you work in wind. Check the contact tip, a worn bore upsets the wire feed and causes burnback. Plan the preheating and the post weld heat treatment to the WPS for the grade in hand, CrMo steels harden in the heat affected zone.
